Metallic construction.



W. H. PAETH.

METALLIC CONSTRUCTION.

APPLICATION FILED JUNE 30. I916. RENEWED AUG. 29. NH}.

1,28%,710. Patented Oct. 22, 1918.

ill HIT? TINT WILLIAM H. PAE'IH, OF PROVIDENCE, RHODE ISLAND, ASSIGNORTO GORI-IAM (10., OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

METALLIC ooivsrnuc'rron.

Lasagna.

Specification of Letters Patent.

Patented Oct. 22, 1912.

Application filed June30, 1916, Serial No. 106,918. Renewed August 29,1918. Serial No. 251,994.

To all whom it may concern:. 7

Be it known that 1, WILLIAM H. PAETH, a citizen of the United States,residing at Providence, in the county of Providence and State of RhodeIsland, have invented'certain new and useful Improvements in MetallicConstructions; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to metallic mullions and it has for an object toprovide a bar of two lengths of metal, so shaped, that when assembled,these two rails .are held in engagement with each other by webs andflanges which interlock.

Further objects will be apparent from the following specification,appended claims and drawings, in which,

Figure 1 is an elevation of a window showing the use of this type ofrail,

Fig.2 is a composite cross-sectional and perspective view as on the line2-2 of Fig. 1,

Figs. 3 and 4 are cross-sectional views of the two members shOWing thesame detached, and

Fig. 5 is a perspective view of one rail showing a slight modification.

This invention provides for the construction of mullions, in which, thefinished bar is of substantially tubular formation, and is formed of twolengths of metal which are so shaped as to permit their being assembledby a longitudinally sliding movement of one on the other. Each of therails forming part of this bar, has a web and a flange, and extendingfrom each web is a supplemental flange which serves to reinforce therail structure and to lock the supporting rail, to the othercomplemental rail.

Referring to the drawings, there is shown a frame 10 in which is placeda sash 11 and this sash includes mullions 12 which are of the formationshown in Figs. 2, 3 and 4%. These mullions comprise lengths of metal ofgeneral F shape in cross-section which are slid together endwise inhaving a web of each section engage with a flange of the other section.In this construction, 13 and 14 indicate the flanges, from which extendthe webs 15 and 16 and on these webs 15 and 16 are formed thesupplemental flanges 17 and 18. The flanges 13 and 14 have the off-setor overhanging edges 19 and 20 and beads 21 and 22 formed thereonrespectively. The webs 15 and 16 are of the same relative di mensionsand the supplemental flanges 17 and 18 are so positioned on the webs 15and 16 as to cause the supplemental flange from one rail to engage withthe supplemental flange on the other rail to hold the two partstogether, as well as to cause the end of each supplemental flange toreinforce the web 15 or 16 of the other rail, as the case may be. Whenthe two parts are assembled, the shoulders formed bythe ofl'set portions19 and 20 engage the outer faces of the edges of thewebs 15 and 16 toprevent lateral displacement of said webs with respect to each other.

When the two parts are assembled, forming a composite bar ofsubstantially tubular formation, the offset portions 19, 20, 21 and 22form beads between which supplemental frames to receive the glass may beinserted and it is apparent that it is possible to modify thecross-sectional configurations of these parts to meet requirements indiflerent instances.

In the forms shown in Figs. 2, 3 and 4, the supplemental flanges 17 and18 are intended to run continuously along the length of the webs 15 and16, but as shown in Fig. 5, sections are removed from the supplemental.flange 23 at intervals along its length to form spaces 24, so that thesections 23 of one rail may be passed through the spaces 2% in thecorresponding sections of the other rail, and then, one rail may be slidonly a fractional portion of its length to lock the two rails togetherinstead of sliding the two parts together longitudinally for theirentire length.

Having thus described this invention, I claim:

1. A bar comprising complemental sections, each section comprising a weband flange portion, said web and flange presenting an angularcross-sectional configuration, beads formed on the edges of this flangeportion, said webs of each section engaging behind a head on the flangeof the other section, supplemental flanges formed on said web, saidsupplemental flanges of one section engaging with the correspondingportion on the other section, to prevent separation of said sectionslaterally, and said beads forming longitudinal recesses along theopposite sides of said structure.

2. A bar comprising complemental sections, each section comprising a weband a flange portion, beads formed along the edges of said flangeportion, and a supplemental flange formed on said Web portion, the edgeof the Web portion of one section engaging behind a bead portion of theother section, the supplemental flange of one section underlying that ofthe'other section, said Webs and supplemental flanges being of suchWidths as to reinforce the opposite Walls of the structure, the beads ofthe flange sections forming longitudinal recesses along some of the sideWalls of the structure, and said sections being assembled ordisassembled bv longitudinal movement of one with respect to the other.

3. A bar of metallic construction comprising complemental rails, eachrail comprising a Web, a flange With over-turned edges, and asupplemental flange extending from said Web parallel to said flange, theWeb of each section engaging With the overturned edge of the flange ofthe other section, and the su lemental flange of one rail engaging thecorresponding portion of the 2 other rail, to prevent separation of saidsections and to maintain the desired spaced relationship of said rails.

4:. A bar for metallic construction, comprising complemental railssubstantially F 3 shaped in cross-section, having the edges of the sidesof the angular formation of one rail engage With corresponding parts ofthe other rail, and having the intermediate ex tension from one of thesides of one rail 3 engage with a corresponding part of the other rail.

In testimony whereof I affix my signature in presence of two Witnesses.

WILLI'AM H. PAETH.

Witnesses:

F. W. MAsoN, GEORGE A. BURLINGAME.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G."

